Update: There are now a couple of other ways to get your tag data from vgmdb. You can use CDDB access, which should work with most mp3 tagging apps, or these web source scripts for Mp3tag. Both of these are a much better solution than Let’s Tag.
Let’s Tag requires Microsoft .NET Framework 3.5. The Installer Package will install this for you if you don’t already have it. If you’re using the Zip Package and need to install Microsoft .NET Framework 3.5, you can download it here.